The present participle is like '-ing' in English.

If it doesn't make sense as a participle in a clause ... There are a few participial adjectives that can be used in both -ing and -ed forms, but note the differences in meaning, depending on ...

Present participle (verb-ing) clauses can be used without a subject pronoun and an auxiliary when the subject of the sentence does two things at the same time or when one action interrupts another.